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Finding the Fourth Proportional to 198,491.52, 273,923.52 and 113,635.92

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Solution

The fourth proportional to 198,491.52, 273,923.52 and 113,635.92 is: 156,820.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,491.52 : 273,923.52 = 113,635.92 : x
  2. Step 2: Convert to fraction form
    198,491.52/273,923.52 = 113,635.92/x
  3. Step 3: Cross multiply
    198,491.52x = 273,923.52 × 113,635.92
  4. Step 4: Simplify right side
    198,491.52x = 31,127,551,204.84
  5. Step 5: Solve for x
    x = 31,127,551,204.84/198,491.52
  6. Step 6: Final answer
    x = 156,820.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.